The correct answer is D. Destructive, mindless.
Explanation
The Tone of a text is a literary technique in which the author of the text expresses her attitude or feelings regarding a topic so that the audience perceives them. According to the above, in the second paragraph of the fragment, Carlos uses the words "destructive" and "mindless" to express his position of the issue of whales' harm, arguing it is not necessary because there are already alternatives to obtain similar oils to those obtained from whales. So the correct answer is D. Destructive, mindless.